Rotatable Magnet Housing for Hall Sensor Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing force measuring devices face challenges in accurately and cost-efficiently manufacturing displacement measuring devices, particularly in positioning Hall-sensors and magnets with high precision, due to complex and expensive techniques required for small gaps and tolerances in mounting components.
Innovation Solution
A displacement measuring device design where the Hall-sensor unit is attached first, and the magnet unit is positioned and adjusted using round accommodation holes perpendicular to the plane, allowing for easier and more accurate placement, with the magnet unit being rotatable to achieve optimal signal alignment, and accommodation holes being made before cutting the gap for improved manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex techniques are used to achieve small gaps and high positioning precision for Hall-sensors and magnets, then measurement precision is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent applies preliminary action by creating accommodation holes in the support basis before cutting the gap. This allows the Hall-sensor unit and magnet unit to be positioned and fixed in their accommodation holes prior to gap cutting, ensuring high positioning precision without requiring complex post-positioning techniques. The preliminary positioning in the accommodation holes serves as a pre-prepared structure that simplifies subsequent assembly steps.
Solution Approach 2:
The patent introduces accommodation holes as an intermediary structure that facilitates the positioning of Hall-sensor and magnet units. These holes act as mediators between the support basis and the sensor/magnet components, providing a simple yet effective means to achieve precise positioning without complex manufacturing techniques. The accommodation holes serve as intermediate structures that guide and secure the components in their correct positions.
2Measurement precision
If complex techniques are used to achieve small gaps and high positioning precision for Hall-sensors and magnets, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
The patent applies preliminary action by creating accommodation holes in the support basis before cutting the gap. This allows the Hall-sensor unit and magnet unit to be positioned and fixed in their accommodation holes prior to gap cutting, ensuring high positioning precision without requiring complex post-positioning techniques. The preliminary positioning in the accommodation holes serves as a pre-prepared structure that simplifies subsequent assembly steps.
Solution Approach 2:
The patent introduces accommodation holes as an intermediary structure that facilitates the positioning of Hall-sensor and magnet units. These holes act as mediators between the support basis and the sensor/magnet components, providing a simple yet effective means to achieve precise positioning without complex manufacturing techniques. The accommodation holes serve as intermediate structures that guide and secure the components in their correct positions.
3Measurement precision
If the magnet unit is made rotatable for optimal signal alignment, then measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies dynamics by making the magnet unit rotatable within its accommodation hole. This allows the magnet to be dynamically adjusted to different angular positions to achieve optimal signal alignment with the Hall-sensor. The rotatable design enables the system to adapt to varying operational requirements and achieve maximum measurement accuracy through dynamic repositioning, rather than being fixed in a single static position.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method simplifies the assembly process, reduces manufacturing costs, and enhances positioning precision, allowing for more accurate adjustability and smaller mutual distance between the magnet and sensor units, improving the accuracy of force measurement.
Implementation Method 1
The sensor unit (8) comprises the actual sensitive element mounted in a housing, while the reference unit (7) comprises an actual reference element mounted in a housing. The sensitive element (not shown for sake of simplicity) is sensitive to displacement of the reference element. In a preferred embodiment, the sensitive element is a Hall-sensor and the reference element is a magnet.
Data Source
Figure 1~2
Figure 3~4C
Figure 5A~6
AI summary
A displacement measuring device (20) comprises a Hall-sensor (37) and a magnet (35) mounted in a magnet housing (38) that has rotational freedom in an accommodation space (47), Adjusting the device for optimal sensitivity involves rotating the magnet housing (36). After the adjustment, the magnet housing (36) is secured in the accommodation space (47).